scholarly journals Geochemistry of surficial sediment cores, Dundas buried bedrock valley area, southwestern Ontario

2018 ◽  
Author(s):  
D A J Stepner ◽  
R D Knight ◽  
A F Bajc ◽  
H A J Russell
Keyword(s):  
Sediment Cores ◽  
Surficial Sediment ◽  
Valley Area

scholarly journals Geochemistry of surficial sediment cores, Brantford-Woodstock area, southern Ontario

2018 ◽  
Author(s):  
R D Knight ◽  
D A J Stepner ◽  
A F Bajc ◽  
H A J Russell
Keyword(s):  
Sediment Cores ◽  
Surficial Sediment ◽  
Southern Ontario

scholarly journals Geochemistry of surficial sediment cores, Greater Toronto Area, southern Ontario

2018 ◽  
Author(s):  
R D Knight ◽  
D A J Stepner ◽  
R E Gerber ◽  
S Holysh ◽  
H A J Russell
Keyword(s):  
Sediment Cores ◽  
Surficial Sediment ◽  
Southern Ontario ◽  
Greater Toronto Area

scholarly journals The spatial legacy of Australian mercury contamination in the sediment of the Molonglo River

Elem Sci Anth ◽  
2020 ◽  
Vol 8 ◽  
Author(s):  
Dylan Stinton ◽  
Larissa Schneider ◽  
Sara Beavis ◽  
Janelle Stevenson ◽  
William A. Maher ◽  
...  
Keyword(s):  
New South ◽  
Sediment Cores ◽  
New South Wales ◽  
Surficial Sediment ◽  
Mercury Contamination ◽  
Mine Site ◽  
Factors Influencing ◽  
South Wales ◽  
Chemical Factors ◽  
Physical And Chemical

Mercury (Hg) contamination is an environmental concern as a by-product of legacy mining in Australia. Here we investigate the spatial and temporal distribution of Hg in the Molonglo River system in New South Wales, Australia, and assess the physical and chemical factors influencing that distribution. Mercury concentrations in sediment cores were measured in conjunction with 210Pb and 137Cs dating to establish historical contamination. This was done at the source mine site of Captains Flat, New South Wales, and the system’s sink in Lake Burley Griffin, Australian Capital Territory. Additionally, surficial sediment Hg concentrations along the Molonglo River were analyzed to determine the spatial distribution of Hg. Analytical results showed the primary physical and chemical factors influencing Hg dispersion to be distance, total organic matter, and the presence of iron oxides and oxyhydroxides. The highest Hg concentrations were near the mine site at Captains Flat and decreased significantly with distance. Sediment core analyses in both Captains Flat and the lake showed reductions in Hg concentrations toward surficial sediment layers. It is suggested government-funded rehabilitation programs are playing a part in reducing the release of metal contamination.

scholarly journals Geochemistry of surficial sediment cores, southern Simcoe County, southern Ontario

2018 ◽  
Author(s):  
R D Knight ◽  
A F Bajc ◽  
R P M Mulligan ◽  
M J Moroz ◽  
H A J Russell
Keyword(s):  
Sediment Cores ◽  
Surficial Sediment ◽  
Southern Ontario

scholarly journals Geochemistry of surficial sediment cores, southern Ontario: data release

2018 ◽  
Author(s):  
D A J Stepner ◽  
A F Bajc ◽  
A K Burt ◽  
R D Knight ◽  
H A J Russell
Keyword(s):  
Sediment Cores ◽  
Surficial Sediment ◽  
Southern Ontario ◽  
Data Release

Water-quality trends using sediment cores from White Rock Lake, Dallas, Texas

Fact Sheet ◽  
1996 ◽  
Author(s):  
Peter C. Van Metre ◽  
Larry F. Land ◽  
C.L. Braun
Keyword(s):  
Water Quality ◽  
Sediment Cores ◽  
Water Quality Trends ◽  
Rock Lake
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